网卡配置：
# The loopback network interface
auto lo
iface lo inet loopback # The primary network interface
auto eth0
iface eth0 inet static
address 172.16.13.134
netmask 255.255.255.0
gateway 172.16.13.2
dns-nameservers 114.114.114.114 auto eth1
iface eth1 inet manual
up ip link set dev $IFACE up
down ip link set dev $IFACE down auto brq6bf61a06-
iface brq6bf61a06- inet manual
bridge_ports eth1
up ip link set dev $IFACE up
down ip link set dev $IFACE down
ml2_conf.ini
[ml2_type_flat] flat_networks = provider
linuxbridge_agent.ini:
[linux_bridge] physical_interface_mappings = provider:eth1 bridge_mappings = provider:brq6bf61a06-
混杂模式：